USB的总线挂起时,其电流是不是小于280uA???
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- 136211
- 性别
- 男
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USB协议只有 USB1.0 USB1.1 USB2.0 USB OTG没有USB1.2? 按照USB1.1协议规定加上上拉电阻的电流在挂起时<500uA!因为上拉电阻会消耗200uA,所以这个280uA在1.1中应该是设备消耗的电流! 详细资料: USB1.1协议中139页.至于你说的接口部分,希望你在详细查一下相关的手册! OTG是很大的一个部分!你要看清楚是什么地方的电流! |
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